Finally got it running!!!
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Joined: Feb 2007
Posts: 72
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From: Sycamore Illinois
Finally got it running!!!
Well,
Since Jan. the 89 has been torn down to the block all because of a lower intake leak and after a head job (ported with 2.02 and 1.60), full exhaust, pro magnum rr, miniram, throttle body, and hypertech dist. it idles fine but, once you give it gas it falls on its face and wants to die out. I idled it to the gas station 3 blocks away for some fresh gas and just made it back home. I was thinking that either the idle air set screw is not set right or the tps is not set right. It kind of seems like ...well... I'm not sure but, any suggestions would be great! Oh, and it already had a Vortech kit with #30 injectors on it before I began the tear down.
Since Jan. the 89 has been torn down to the block all because of a lower intake leak and after a head job (ported with 2.02 and 1.60), full exhaust, pro magnum rr, miniram, throttle body, and hypertech dist. it idles fine but, once you give it gas it falls on its face and wants to die out. I idled it to the gas station 3 blocks away for some fresh gas and just made it back home. I was thinking that either the idle air set screw is not set right or the tps is not set right. It kind of seems like ...well... I'm not sure but, any suggestions would be great! Oh, and it already had a Vortech kit with #30 injectors on it before I began the tear down.
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Joined: Dec 2006
Posts: 195
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From: Savannah Georgia
I would look into ignition problems, it could range anywhere from bad plugs to a dead distributor. The entire system between those, it could be as simple as a bad ignition module. Basically it's getting gas but not enough spark. Of coarse you've also got tps and IAC , honestly theres a list of things that could cause this, my first instinct however would be to go through the ignition.
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Joined: Feb 2007
Posts: 72
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From: Sycamore Illinois
thanks for the quick reply but, I put in new plugs (ngk v-grove), new wires (msd 8.5), and a hypertech coil so I am not thinking that it is the ingition unless it would have to do with timing accept it is idleing good and I think that the computer would advance or retard timing if needed. I am a novice so I am not sure though.
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Joined: Feb 2007
Posts: 72
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From: Sycamore Illinois
Well,
I tried setting timing and started at about +15 and went up to +32 which seems to run better but, the only problem is that it would fall on its face at about 1300. I am thinking that it has something to do with the computer not retarding the timing under boost or not giving it enough fuel under boost. I forgot to mention that it has a DFI on it so I am thinking that the computer needs to be sinked with the distributer for the timing and fuel. Any ideas? I think it is off to the tuner for me (its just to bad that I couldn' t drive it there. What is a good fuel pressure (45) like tpis states or higher?
I tried setting timing and started at about +15 and went up to +32 which seems to run better but, the only problem is that it would fall on its face at about 1300. I am thinking that it has something to do with the computer not retarding the timing under boost or not giving it enough fuel under boost. I forgot to mention that it has a DFI on it so I am thinking that the computer needs to be sinked with the distributer for the timing and fuel. Any ideas? I think it is off to the tuner for me (its just to bad that I couldn' t drive it there. What is a good fuel pressure (45) like tpis states or higher?
